Chusetts



(No Model.) 4 Sheets-Sheet 1.

0. W. GLIDDEN 8v A. D'. ELLIOTT. HEEL TRIMMING MACHINE.

No. 439,060. Patented Oct. 21, 1890.

TM: scams Pneus cn., mara-urna.. vnsnmnmu, n. c.

4 Sheets--Sheet 2.

0. W. GLIDDEN SLA. D. ELLIOTT. HEEL TRIMMING MACHINE.

(No Model.)

No. 439,060. Patente'd'Oot. 21, 1890.

@N0 Model.) sheets-sheet a.

C. W. GLIDDBN su A. D. ELLIOTT. HEEL TRIMMING MACHINE.

No. 439,060. Patented Oct. 21, 1890.

(No Model.) 4 Sheets-Sheet, 4.

C. W. GLIDDEN & A. D. ELLIOTT HEEL TRIMMING MACHINE.

N0. 439,060. Patented OGCl 2l, 1890.

UNITED STATES PATENT OFFICE.,

CHARLES XV. GLIDDEN, OE LYNN, AND ALVIN D. ELLIOTT, OF LAWRENCE,

ASSIGNORS TO JAMES IV. BROOKS, TRUSTEE, OF CAMBRIDGE, MASSA- CHUSETTS.

HEEL-TRIMNIING MACHINE.

vSIPECIFICA'IION' forming part of Letters Patent No. 439,060, dated October 21, 1890.

Application filed March 30,1889. Serial No. 305,419. (No model.)

To all whom it may concern: vated position while the heel was trimmed,

Be it known that we, CHARLES WV. GLIDDEN and then the die-bed spindle was again lowand ALVIN D. ELLIOTT, of Lynn and Lawered and the machine stopped automatically, rence, respectively, county of Essex, State of this requiring two full rotations ot the shaft 5 Massachusetts, have invented an I'mproveemployed to actuate the die-bed spindle. In 55 ment in Heel-Trimming Machines, of which the other plan, after the operator started the the following description, in connection withV machine by his foot and the usual startingthe accompanying drawings, is a specificatreadle, the die-bed spindle was raised to nail tion, like letters and figures on the drawings the heel, and the said spindle was kept ele- Io representing like parts. vated long enough to enable the heel toV be 6o This invention is intended as an improvetrimmed, and then the die-bed spindle was ment upon the machine described in United lowered and the machine stopped automati- States application, Serial No. 297,205, tiled cally, and this was done during one rotation January 22, 1889, and has for its object more of the sleeve for actuating the die-bed spin- I 5 especially to simplify and improve the means dle; but the same amountof time was taken 65 employed for eecting the starting and stopfor nailing each class of Work, for in the iirst ping of the several shafts employed therein, class of work the die-bed spindle remained but especially the tubular shaft or sleeve down longer in the trimming than in the lathavin g the eccentric to move the die-bed spin ter class of work. In both kinds of Work one zo dle and the cam-shaft and the trimming-shaft. full rotation of the cam-shaft was required, 7c The cam-shaft in the application referred to the die-bed spindle in one class of work being has on it two cams having projections to. auf raised and lowered while the cam-shaft was tomatically control the rise and fall of the making one rotation, while in the other class die-bed spindle and a trimmer-cam, and the of work the die-bed spindle was raised twice 2 5 machine is devised for two classes of nailingduring one rotation of the said cam-shaft, 75 viz., to nail the heel on the shoe and add a each rise and each fall of the die-bed spindle top lift and then trim the heel,including the being completed each in a halfrotation of top lift, or to simply nail the heel on the shoe the said cam-shaft.

. and then trim it. In the machine described In the machine herein to be described the 3o in the said application one or the other class' cam-shaft is permitted to have either a con- 8o ot' work might be done at will; but the opertinuous motion during each full rotation or ator before starting the machine had to move to have an intermitting motion during each a certain key or locking device longitudinally full rotation, that depending upon the class on the cam-shaft, so as to loosen some and [ix of work to be done. Hereinthe work to be 35 other cams with relation to the said shaft, so done is the same as that which is to be done 85 that when the machine was started by the in the said application.

operator (he putting his foot on the usual Our invention consists, essentially, in the treadle) the machine would continue in mocombination, with the cam-shaft and a comtion, the stopping and starting of the diferpound cam thereon and a rock-shaft having 4o ent shafts being effected automatically until an arm to control the time of starting and 9o the heel was completed, and the trimmingstopping of the trimmer-shaft, of an arm coshaft when started was rotated far enough to operating with the said cams, the said arm complete a full rotation. For one class of being movable longitudinally upon the said Y work, as when a top lift was employed, the rock-shaft to enable it t-o be actuated by one 45 die-bed spindle was first elevated to nail the or the other of the said cams, substantially as 95 heel, it thereafter being depressed to permit will be described.

the top lift to be interposed between the heel Other features of our invention will be hereand the top-lift plate, and then the die-bed inafter described and made the subject of spindle was raised to blind on the top lift, claims at the end of the specification.

5o the die-bedspindle being stopped in its ele- Figure 1 is a partial left-hand side eleva- :ce

tion of a heeling-machine embodying our present improvements, the wheel A5 being partially broken out to show the clutch and other parts with which it co-operates, the main power-shaft being in section, the usual belt-pulleys being omitted. Fig. 2 is a partial right hand side elevation of the machine shown in Fig. 1. Fig. 3 is a section below the dotted line 0c, Fig. 1. Figs. 4, 5, 6, and 7 are details of the cams carried by the camshaft and to be referred to. Fig. 8 is a detail referring to devices for stopping the trimming-shaft at the completion of its rotation. Fig. 9 is asection of Fig. 8 in the line 032. Fig. 10 shows the clutch-controller detached. Fig. 1l shows the hub 18 detached; and Fig. 12 shows the lever 14 detached.

The frame-work A of the machine, the diebed spindle B, its co-operating toggle-link D D', the connecting-rod N4, having at one end an eccentric-strap surrounding the eccentric B15, the sleeve B10, carrying the said eccentric and loose on the shaft A6, the brake-wheel B22, the toothed gear A5, fast upon the shaft A6 and having at its opposite end the pinion A7, the gear ASX, loose upon the cam-shaft A9, the main shaft A', having the pinion A3 to engage and rotate the gear A5, the said shaft having at its opposite end the pinion A4 to engage the large toothed gear B2, loose on the trimming-shaft B9, the crank-pin B19, entering a block fitted to slide in a slot of the trimmer-lever C3, the treadle E, the cam-faced hub C7, fast on the sleeve B10 and surrounded loosely by the collar C, having projections CX and fingers C', and rolls C2 between the said iingers and interposed between the cam-hub CT and the inner wall of a chamber made in the gear or wheel A5, and the clutch-controlling device B20, having an arm B4, vthe like hubs a, fast on the shafts A9 B9, the like loose hubs or clutch-collars a2 a2, having ngers, and between them rolls, the fingers and rolls being in practice interposed between the wheels A8X and B2, and many-faced cam-hubs fast on the said shafts A9 B9 are and may be all as in the machine described in the application referred to, wherein the same letters are employed to designate like parts, except that the loose hub within the wheel ABX has two rather than one projection.

Herein we have considered it unnecessary to specifically illustrate the entire mechanism of the clutches which are interposed between the said wheels A8X and B2 and the shafts on which they normally run loose, for the construction of the said clutches is fully described in the said application, the said clutches bein g substantially the same as the clutch which co-operates with the wheel A5.

The cam-shaft A9 has fast upon it near theY little farther to the right the said shaft A9 has fast upon it a cam 4, the hub of which receives a set-screw 13, the left-hand face of the cam 4 having secured to it by suitable pins a cam 3, thus making asecond compound cam. These compound cams might each be in a single piece. The outlines of these cams are fully shown in Figs. 4 to 7. The cams e e and the cams 3 4work together in pairs. The cams e e control the time of the operation of the trimming mechanism, and the cams 3 and 4 the times at which the die-bed spindle shall rise and fall, and to do the different kinds of nailing herein provided for it will be obvious that the trim m ing mechanism has to be started in a different time when nailing through and when blinding a top lift, and so also the diebed spindle has to have given to it an extra rise and fall when the heel is to have a top lift blinded upon it before trimming.

The rocker-shaft cl3 herein shown may be considered to be substantially the same as that shown in the said application; but herein it is moved by different means and carries different devices. The shaft d3 at its end at the right-hand side of the machine has fast upon it a clutch-controlling arm d', which cooperates with the single projection a3 of the clutch-collar surrounding the cam-hub a, fast upon the trimming-shaft B9. At its opposite end the shaft d3 has fast upon it a collar d, to which is connected one end of a spring d5, the other end of the spring being fastened by a suitable pin or stud to one of the like bearings d, in which the said shaft da is mounted to rock, the said spring acting normally to keep the arm CZ out of the range of movement of the said projection as and to keep pressed against the periphery of the cam e or e, according to the work to be done, an arm e2, which is keyed to the shaft d3, so that the said arm or its hub may be moved longitudinally on the said shaft, the hub of the arm e2 having a suitable locking device, as e3, herein shown as a pin, which may be entered into either the hole 5 or the hole 6, Fig. 3, in the said shaft.

The hub of the arm e2 has projecting from one side of it a sleeve e4, (see Fig. 3,) upon which is mounted loosely the hub of an arm 14, the said arm by its own gravity riding upon either the cam 3 or the cam 4, according to the work to be done, the said arm 14 being moved longitudinally upon the shaft'd3 in unison with the arm e2, but rotating independently of the said arm e2 on the sleeve e4. The end of the sleeve e4 has applied to it a collar e5, so as to prevent the hub of the arm V14 from slipping off the said sleeve, the said collar compelling the arm 14 to be moved in unison with the sleeve as it is reciprocated upon the shaft cl3.

The end of the arm 14 farthest from the shaft d3 has a toe 15, which is extended laterally, as herein shown, toward the cam e; but it does not touch that cam. The toe 15 serves to support the inner end ofthe lever D4, forming part of the main clutch-controller IOO IIO

B00, and the said clutch-controller is actuated by the said arm 14 to release the clutch-collar C at different times in the rotation of the cam-shaft, according to which cam 3 or4acts on the heel 25 (see Fig. 1) of the arm 14.

The foot-treadle E has jointed to it at its inner end a link 17, which at its lower end is jointed by a pin 26 to an arm of a hub 18, fast on a rock-shaft g', which may be considered to be the same as the 4rock-shaft designated by like letter in the said application, the said rock-shaft having fast upon it at the right-hand side of the machine the finger g, which co-operates with, as herein shown, two projections 19 20 of the clutch-collar surrounding the hub a., fast on the shaft A9 and common to the said application, the said clutch-collar herein shown differing from that shown in the said application only in the addition to it of a second projection, as 20, which enables the machine to be stopped just as the die-bed spindle is lowered to afford sufcient time for the operator to insert a top lift by hand, after which the machine is Vagain started by the operator Vplacing his foot on the treadle; but this extra projection might be dispensed with were the operator suficiently expert to obviate risk of injury to his hands while inserting the top lift.

The hub 18 has, as shown separately in Fig. 11, several arms, chiefly to firmly support the pin 26, the said pin receiving upon it one end of a slotted link 28, the other end of the said link being attached to the usual pin 29', employed to unite together the two links D D of the toggle, the said link 28, when the machine is set to simply nail a heel through and then trim it, serving as the die-bed spindle is lifted to nail the heel through, to turn the rock-shaft g and keep the finger g out of the range of movement of the projection 20 of the loose hub or clutch-collar d0 within'the wheel ASX, and consequently the cam-shaft is enabled to complete its rotation without stopping.

Referring to Fig. 1, the arm e2 is shown as resting immediately above the cam e', and the heel 25 of the arm 14 is supposed to be resting in the space 40 of the cam 3 With the arms in this position, the machine is adapted to first nail a heel through, then blind on a top lift and trim the heel, and during this operation the operator has to actuate the treadle E twice to start the cam-shaft, in order that the cam 3 may, through the arm 14 and the clutch-controllerB20, releasethe clutchcollar C and start the sleeve B10 to complete one rotation to thus raise and lower the diebed spindle, the heel 25 during the first rise and fall of the die-bed spindle resting on the part 41 of the cam 3, the said heel entering l the space 42 of the cam 3 as the die-bed spindle completes its descent.

When the operator depressed the treadle to effect the starting of the cam-shaft, as stated, he immediately removed his 'oot from the treadle, permitting the arm g to descend beyond the heel 25 of the arrn`14, and at this v time the cam-shaft stops, the sleeve B10 having been rotated once to nail the heel on and lower the die-bed spindle. The operator then inserts the top Vlift by hand and again depresses the treadle E to again start the camshaft to, enable the rise 43 of the cam 3 to act and start the sleeve B10 to again raise the diebed spindle; but the length of the said rise 43 is such as to permit the lever 14 to descend as soon as the die-bed spindle has been elevated, thus permitting the clutch-controller B20 to act and stop the rotation of the sleeve B10 while the die-bed spindle is elevated, leaving the said die-bed spindle up long enough to enable the usual heel-trimming devices, common to United States Patent No. 166,765, to act and trim the heel, the heel 25 remaining in the space 44 while the trimming operation is being performed, which done, the projection 45 of the cam 3 acts on the heel 25 to again lift the arm 14 and again effect the movement of the clutch-controller to again start the sleeve B10 and lower the die-bed spindle, the said cam thus making one complete revolut-ion, the heel 25 standing in the space 40, and at this time the arm g again meets the projection 19 of the clutch-collar co2 on the cam-shaft A0. As the die-bed spindle completed its second ascent, as stated, the space 46 in the cam c came under the proj ection 47 of the arm e2, thus permitting the spring d0 to turn the shaft d0 and remove the arm d from engagement with the projection as of the clutch-collar a2, forming part of the clutch mechanism at the interior of the wheel B2, to thus eect the starting of the trim- IOO ming-shaft B0 while the die-bed. spindle, re- ,l

mains up, the projection 47 of the armeriding upon the substantially circular p''ripheryof the said cam just as the projection 45 of the cam 3 acts, as described, to effect the lowering of the die-bed spindle.

To simply nail the heel through and then trim it all during one rise and fall of the diebed spindle, it is only necessary to actuate the locking device e3 and shove the arms e2 and 14 laterally on the shaft d0 far enough to place the projection 47 in the range of the cam e and the heel 25 in the range of the cam 4. The carn e is of the same outline as the cam e', only the depression in its substantially circular periphery is a little farther forward in the direction of rotation of the said v from striking the second projection 2O of the clutch-collar, before referred to, and thus stop the rotation of the cani-shaft before the trimming of the heel was completed, the link 2S (the die-bed spindle then being elevated) acts on the pin 29 and rotates the rock-shaft g in the direction to keep the arm g out of the range of movement of the projection 20. After the heel has been trimmed the rise 5l of the cam 4 acts to lift the arm 14 and again turn the clutch-controller B20 to again start the sleeve Blo for a half-rotation to lower the diebed spindle, it remaining down while the camshaft completes its full rotation and until the operator again moves the treadle E.

To prevent retrograde motion of the trimming-shaft, we have provided the said shaft With a fast collar 53, (see Fig. 9,) which we have surrounded between the frame-work A and the Weighted crank 54 by a hood 55, which is held in place by a pin 56. This hood is recessed, as shown in Fig. 8, to receive a loose concavo-convex brake-block 57, the concaved side of the block fitting the hub 53, the convex face of the block being acted upon by a friction dog or roll 5S, whichis kept pressed into the space between the said block and a shim by a pin 59, acted upon by a spring 6I. In the rotation of the trimming-shaft, the latter by friction causes the block 57 to travel with it in the direction of rotation of the shaft B9, moving the roll 58 into the widest part of the space 62; but as soon as the rotation of the shaft B9 is stopped, and especially if there is any retrograde motion of the shaft, the block is moved in the direction to carry the roll into the narrowest end of the space 62 and cause the roll to act as a wedge on the block 57 and cause it to exert extra friction on the hub 55.

I claim- 1. In a heel-trimming machine, the trimming-shaft B9, a clutch thereon, the camshaft having the lcompound cams e c', and the rock-shaft d3, having the arm d', to co-operate with said clutch to control the time of starting and stopping the rotation of the trimmershaft, combined with the arm e2, made movable longitudinally on the said shaft, substantially as described.

2. In a heel-trimming machine, the die-bed spindle, the shaft A, a sleeve having an eccentric, the link N4 and toggle D D', and a clutch and clutch-controller, combined with the cani-shaft having the cams 3 and 4, the rock-shaft d3, and arm 14, provided With a heel 25, the said arm being made movable laterally, as described, to place the said heel in the range of one or'the other of the said cams, according to the movement desired for the die-bed spindle, substantially as described.

3. In a heel-trimming machine, the camshaft having the cams e e and 3 and 4, working in pairs, the rock-shaft d3, the arm c2, mounted on the said rock-shaft to be moved longitudinally thereon, and the arm l4,mounted loosely on a hub of the arm e2 and loosely With relation to the said rock-shaft and movable laterally in unison with the said hub and arm7 combined With a locking device to keep the arm e2 and the arm 14 in their adj usted positions with relation to the said cams to control the starting and stopping of the trimming-lever and the rise and fall of the diebed spindle in different times and succession, as described. i

4. In a heel-trimming machine, the die-bed spindle, the toggle D D', means to actuate it, the cam-shaft, the rock-shaft g', and its arm g, to determine the time of stopping and starting the cam-shaft, combined with the link 2S, connected to the said toggle, and means between it and the said rock-shaft g to partially rotate the latter and prevent the stopping of the cam-shaftwhile the die-bed spindle is elevated and the trimming-lever is being operated to trim a heel, substantially as described. t

5. The combination, with the trim ming-shaft B9, its arm, and the lever C3, moved thereby and adapted to actuate the heel-trimming devices, of a friction-brake, substantially as described, including as one of its parts a roll whereby retrograde rotation of the said shaftmaybe checked, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing Witnesses.

CHARLES IV. GLIDDEN. ALVIN D. ELLIOTT.

Witnesses:

WILLIAM H. J. FITZGERALD, WILBUR E. RoWELL. 

